Screens and Spandrels
SECTION E - PROTECTION WITHIN BASEMENT AND FIRE RESISTING SCREEN ACROSS STAIRCASE
Screens and Spandrels
https://plumobsidian.github.io/p/b0d92ed93d164d81b4ff97e715394aff/
SECTION E - PROTECTION WITHIN BASEMENT AND FIRE RESISTING SCREEN ACROSS STAIRCASE